Hi, I updated Easy Blog to 5.1.6 version and when I try to post a blog first it doesnt save it. It says that is saved but not, and when I publish it it says:

Fatal error: Call to undefined function mb_convert_encoding() in /home/vocaltra/public_html/administrator/components/com_easyblog/includes/blocks/handlers/abstract.php on line 141

What can I do? Thank you so much.